Jamieson, Fausset and Brown on Romans 7:18

18. For, &c.--better, "For I know that there dwelleth not in me, that is in my flesh, any good."

for to will--"desire."

is present with me; but how to perform that which is good--the supplement "how," in our version, weakens the statement.

I find not--Here, again, we have the double self of the renewed man; "In me dwelleth no good; but this corrupt self is not my true self; it is but sin dwelling in my real self, as a renewed man."